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Have 1990 isuzu npr 4 cylinder dump truck,wipers do not work ,fuse is good, don't know how to get to wiper motor to check if i have current to mtor,also has a ,i beleive a relay which looks like small box,is that part to the wiper system,or can you tell me how to test .i will appreciate any information . Casey

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Run a jumper wire from the battery directly to the wiper motor leads, if the motor works than your relay is bad.

Posted on May 28, 2010

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Isuzu Rodeo 2001 front wipers stopped working


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Wipers will not work and fusses are good


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Thanks for choosing FixYa and welcome to the site. Your wiper fuse may have blown causing the wipers to stop immediately. Check your fuse box for the exact location of the wiper fuse. If the fuse is good, you will need to see if your wiper motor is working. If it is not, the motor is bad. Since your car is just an 08 model, it may just be the fuse. If you have any questions, let me know. Check these solutions first. If neither don't work, let me know.

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91 s10 wishield wipers don't work fuses are ok motor is ok too don't know what is wrong


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My front wipers do not work, the washer on the front and the rear wiper works fine, they are all on the same thing


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1.Make sure the battery has a strong charge and is in good condition. Use a voltmeter to get a reading if necessary.

2.Connect a jumper wire between ground and the wiper motor. Turn the key on but don’t start the engine. Turn the wiper switch on. If the motor works, check for a corroded or loose ground connection.

3.Turn on the car key but don’t start the engine. Turn on the wipers. Check for voltage at the wiper motor with your voltmeter. If you get a good voltage reading, turn the key off and disconnect the motor from the wiper linkage.

4.Move the wiper arms by hand. If they are stuck, you have found the problem. If the wiper arms move freely by hand, go to step 5. If voltage is not reaching the motor go to step 6.

5.Remove the wiper motor by disconnecting the plug and removing the bolts using a wrench or ratchet. Use a pair of jumper wires to connect the wiper motor directly to the battery. If the motor does not work, replace it.

6.Turn on the key but don’t start the engine. Get a voltage reading across the wiper switch. If there is voltage, use a jumper wire to bypass the switch, if the motor works now, replace the switch, otherwise go to step 7. If there is no voltage at the switch, go to step 8.

7.Check for continuity at the wire between the switch and the motor. The wire could be loose or disconnected.


8.Check the wire coming from the fuse panel to the wiper switch. It could be disconnected or loose.

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Driver windshield wiper does not work


HI. This is a possible motor issue. To confirm, use this procedure. it will help isolate the actual issue at hand.



Step 1

Make sure the battery has a strong charge and is in good condition. Use a voltmeter to get a reading if necessary.

Step 2

Connect a jumper wire between ground and the wiper motor. Turn the key on but don’t start the engine. Turn the wiper switch on. If the motor works, check for a corroded or loose ground connection.

Step 3

Turn on the car key but don’t start the engine. Turn on the wipers. Check for voltage at the wiper motor with your voltmeter. If you get a good voltage reading, turn the key off and disconnect the motor from the wiper linkage.

Step 4

Move the wiper arms by hand. If they are stuck, you have found the problem. If the wiper arms move freely by hand, go to step 5. If voltage is not reaching the motor go to step 6.

Step 5

Remove the wiper motor by disconnecting the plug and removing the bolts using a wrench or ratchet. Use a pair of jumper wires to connect the wiper motor directly to the battery. If the motor does not work, replace it.

Step 6

Turn on the key but don’t start the engine. Get a voltage reading across the wiper switch. If there is voltage, use a jumper wire to bypass the switch, if the motor works now, replace the switch, otherwise go to step 7. If there is no voltage at the switch, go to step 8.

Step 7

Check for continuity at the wire between the switch and the motor. The wire could be loose or disconnected.

Step 8

Check the wire coming from the fuse panel to the wiper switch. It could be disconnected or loose.

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2 Answers

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2. check for power to rear wiper motor at the motor (power wire going in to the wiper motor with rear wiper switch on)
If you have good fuses & have power going in to the rear wiper motor...
3. Pull old rear wiper motor and install a new rear wiper motor.
Thank you please drive thru......

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